I want to create a Scout upgrade that does not need Astronomy to enter ocean tiles. Is it possible to do?

[Arventur98]

Hello, Civfanatics, nice to meet you!

I want to make a Scout upgrade (new recon unit) in my games that would became availiable in Medieval era, but would be able to enter ocean tiles from the get-go, without needing the Astronomy tech. Is is possible to do so in the game with a simple mod? If so, how does one do that?

 

[Bonyduck Campersang]

I think it is very much possible, let me check

 

[Bonyduck Campersang]

I think you can do it by creating a new promotion, and in create a row for it in UnitPromotions_Terrains table, set TerrainType to TERRAIN_OCEAN and all other columns to 0, especially Impassable, then you give that promotion to your unit